openjdk-6: Open Source Java implementation - openjdk-6b18: Open Source Java implementation Details: USN-1263-1 fixed vulnerabilities in OpenJDK 6. The upstream patch for the chosen plaintext attack on the block-wise AES encryption algorithm introduced a regression that caused TLS/SSL connections to fail when using certain algorithms. This update fixes the problem. We apologize for the inconvenience. Original advisory USN-1263-1 caused a regression when using OpenJDK 6�s SSL/TLS implementation.